ARM: dts: sun6i: Fix Display Engine DTC warnings

Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

arch/arm/boot/dts/sun6i-a31-hummingbird.dts

@@ -86,31 +86,23 @@
 	vga-dac {
 		compatible = "dumb-vga-dac";
 		vdd-supply = <&reg_vga_3v3>;
-		#address-cells = <1>;
-		#size-cells = <0>;
 
 		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
 			port@0 {
-				#address-cells = <1>;
-				#size-cells = <0>;
 				reg = <0>;
 
-				vga_dac_in: endpoint@0 {
+				vga_dac_in: endpoint {
-					reg = <0>;
 					remote-endpoint = <&tcon0_out_vga>;
 				};
 			};
 
 			port@1 {
-				#address-cells = <1>;
-				#size-cells = <0>;
 				reg = <1>;
 
-				vga_dac_out: endpoint@0 {
+				vga_dac_out: endpoint {
-					reg = <0>;
 					remote-endpoint = <&vga_con_in>;
 				};
 			};

arch/arm/boot/dts/sun6i-a31.dtsi

@@ -491,8 +491,6 @@
 				};
 
 				hdmi_out: port@1 {
-					#address-cells = <1>;
-					#size-cells = <0>;
 					reg = <1>;
 				};
 			};
@@ -1229,12 +1227,9 @@
 				};
 
 				be0_out: port@1 {
-					#address-cells = <1>;
-					#size-cells = <0>;
 					reg = <1>;
 
-					be0_out_drc0: endpoint@0 {
+					be0_out_drc0: endpoint {
-						reg = <0>;
 						remote-endpoint = <&drc0_in_be0>;
 					};
 				};
@@ -1259,12 +1254,9 @@
 				#size-cells = <0>;
 
 				drc0_in: port@0 {
-					#address-cells = <1>;
-					#size-cells = <0>;
 					reg = <0>;
 
-					drc0_in_be0: endpoint@0 {
+					drc0_in_be0: endpoint {
-						reg = <0>;
 						remote-endpoint = <&be0_out_drc0>;
 					};
 				};